3种抛光系统对光固化复合树脂表面粗糙度影响的实验研究  

Effect of three finishing and polishing systems on the surface roughness of the packable composite resin

作　　者：陆怀秀[1] 隋强[1] 刘宇[1] 刘亚君[1] 张明烨[1] 林松杉[1] 

机构地区：[1]海军总医院口腔科,北京100037

出　　处：《牙体牙髓牙周病学杂志》2009年第7期403-405,409,共4页Chinese Journal of Conservative Dentistry

摘　　要：目的:研究不同抛光处理对光固化复合树脂表面粗糙度的影响,为临床选择合适的抛光系统提供参考。方法:选择Filtek Z250复合树脂制作30个样本试件,随机分为3组,分别用3种不同的抛光系统(Sof-lex,Enhance,Super-Snap)处理,扫描电镜观察抛光前后的表面形态,表面粗糙度仪测定其粗糙度。结果:不同抛光系统处理Filtek Z250复合树脂试件后,单因素方差分析比较3组表面粗糙度Ra值的总体均数间差异,显示有统计学意义(P<0.05);SNK检验对各抛光系统组进行两两比较,Sof-lex和Super-Snap两组之间无明显差异,但二者与Enhance组比较存在显著性差异(P<0.05)。结论:在本实验条件下,对于Filtek Z250复合树脂的抛光处理,3种抛光系统中Sof-lex和Super-Snap处理后表面粗糙度值较低,抛光效果优于En-hance抛光系统。AIM： To investigate the influence of three different kinds of finishing and polishing systems on the surface roughness of packable light - cured composite resin named Filtek Z250. METHODS： Thirty specimens were prepared and divided into three groups randomly（ n = 10） , each sample was treated by three finishing and polishing systems individualy（ Sof- lex,Enhance ,or Super- Snap）. The means of average surface roughness were assessed using a profilometer, and the morphological change was observed by scanning electron microscope （SEM）. All the data were analyzed by one - way ANOV and Student - Newman - Keuls test. RESULTS ： Among the different finishing and polishing procedures test, one - way ANOVA and Student - Newman - Keuls （ SNK - q） tests indicated that three systems had different surface roughuess（P 〈0.05 ）. The Ra value recorded for Sol- Lex disc and Super- Snap disc was lower than that for Enhance disc in all samples tested. CONCLUSION： Under the limited condition of this experiment, for Fihek Z250, the surface treatment methods contribute to different surface roughness, of which the Sof - Lex and Super - Snap present lower Ra values than Enhance system.

关 键 词：抛光 复合树脂 表面粗糙度 扫描电镜 

分 类 号：R783.1[医药卫生—口腔医学]